Populate subnets into Route53
Recently I was working standarizing network addressing and host names as part of a deployment inside an AWS VPC, so I came up with this solution. This script associates IP addresses ranging from 192.168.10.2 to 192.168.10.254 and from 192.168.11.2 to 192.168.11.254 with DNS A records named ip-192-168-10-X.lan.example.net and ip-192-168-11-X.lan.example.net. This can also be very useful when dealing with services rescricted by URLs and you need your developers to be able to publish them using their workstations.
# Force v1.x of the AWS SDK
gem 'aws-sdk', '< 2.0.0'
require 'rubygems'
require 'aws-sdk'
require 'colorize'
acces_key_id = 'YOUR_KEY_ID'
secret_access_key = 'YOUR_SECRET_KEY'
zone = 'lan.example.net'
zone_id = 'RUTE53_ZONE_ID'
ttl = 86400 # 24 hours
r53 = AWS::Route53.new( :access_key_id => acces_key_id,
:secret_access_key => secret_access_key )
records = r53.hosted_zones[zone_id].rrsets
nets = %w( 192-168-10 192-168-11)
nets.each do |net|
net_ip = net.gsub('-', '.')
puts ">>>> #{net_ip}.0/24 <<<<".colorize(:red)
(2..254).each do |i|
records.create("ip-#{net}-#{i}.#{zone}.", 'A', :ttl => ttl,
:resource_records => [{:value => "#{net_ip}.#{i}"}])
puts "ip-#{net}-#{i}.#{zone} => #{net_ip}.#{i}"
end
endThis script definetely saved me a lot of clicks. Enjoy yourself!
Posted under Cloud tagged as DevOps, DNS, AWS, Route53, Ruby